Nasal cavity

The video tutorial explores the anatomy of the nasal cavity, including the nasal conchae, meatus, and septum. It discusses the roles of cranial nerves, particularly the olfactory and maxillary nerves, in sensation and smell. The tutorial also covers the paranasal sinuses, their drainage pathways, and the nasolacrimal duct. Finally, it explains the auditory tube's function and its anatomical differences between infants and adults, highlighting the potential for infections to spread from the nasopharynx to the middle ear.

What is the primary function of the nasal conchae?

• To detect odors

• To filter, warm, and humidify air

• To support the nasal septum

• To produce mucus

Which cranial nerve is responsible for the sense of smell?

• Cranial nerve X

• Cranial nerve V-2

• Cranial nerve VII

• Cranial nerve I

What is the role of the maxillary nerve in the nasal cavity?

• It provides special sensation for smell

• It regulates mucus production

• It controls the movement of nasal muscles

• It provides general sensation like pain and temperature

Which sinus is located below the orbit and above the maxillary teeth?

• Ethmoid sinus

• Frontal sinus

• Maxillary sinus

• Sphenoid sinus

Where does the nasolacrimal duct empty?

• Superior meatus

• Middle meatus

• Inferior meatus

• Frontal sinus

What is another name for the pharyngotympanic tube?

• Nasal duct

• Eustachian tube

• Lacrimal tube

• Auditory canal

Why are infants more prone to ear infections compared to adults?

• Their immune system is weaker

• Their pharyngotympanic tube is more horizontal

• They produce more earwax

• Their nasal passages are narrower